03-18-2019 01:27 AM
Good day, comrades. There is a configuration shown below and there is a problem with port-channel balancing (LACP). LACP is well assembled, it handles emergency situations, but sends traffic from 6509 to N5k using only one link, while N5k sends traffic to all active links. Any ideas on this issue or is this the expected behavior of VSS?
6509_VSS:
c6509_2_Mol9#sh etherchannel summary 30 Po30(SU) LACP Te1/1/13(P) Te2/1/1(P) c6509_2_Mol9#sh int po30 etherchannel Port-channel30 (Primary aggregator) Age of the Port-channel = 10d:11h:28m:14s Logical slot/port = 46/5 Number of ports = 2 HotStandBy port = null Port state = Port-channel Ag-Inuse Protocol = LACP Port security = Disabled Fast-switchover = disabled Fast-switchover Dampening = disabled Load share deferral = disabled Is fex host PO = FALSE Ports in the Port-channel: Index Load Port EC state No of bits ------+------+------------+------------------+----------- 1 FF Te1/1/14 Active 8 0 FF Te2/1/1 Active 8 c6509_2_Mol9#sh run int po30 interface Port-channel30 description to_N5k switchport switchport mode trunk switchport trunk allowed vlan 15,22,33,54,101,103,110,310,350-354,790,791,813 switchport trunk allowed vlan add 814,820-822,825-828 end c6509_2_Mol9#sh run int Te1/1/14 interface TenGigabitEthernet1/1/14 description to_N5k switchport switchport mode trunk switchport trunk allowed vlan 15,22,33,54,101,103,110,310,350-354,790,791,813 switchport trunk allowed vlan add 814,820-822,825-828 channel-group 30 mode active end c6509_2_Mol9#sh run int Te2/1/1 description to_N5k switchport switchport mode trunk switchport trunk allowed vlan 15,22,33,54,101,103,110,310,350-354,790,791,813 switchport trunk allowed vlan add 814,820-822,825-828 channel-group 30 mode active end
With the same settings, but on the interfaces of one line card:
c6509_2_Mol9#sh int po30 etherchannel Port-channel30 (Primary aggregator) Age of the Port-channel = 10d:11h:28m:49s Logical slot/port = 46/5 Number of ports = 2 HotStandBy port = null Port state = Port-channel Ag-Inuse Protocol = LACP Port security = Disabled Fast-switchover = disabled Fast-switchover Dampening = disabled Load share deferral = disabled Is fex host PO = FALSE Ports in the Port-channel: Index Load Port EC state No of bits ------+------+------------+------------------+----------- 0 53 Te1/1/13 Active 4 1 AC Te1/1/14 Active 4 Time since last port bundled: 0d:00h:00m:01s Te1/1/13 Time since last port Un-bundled: 0d:00h:00m:20s Te2/1/1
N5k_1/2:
N5kML9_1.1_3_1# sh port-c su 30 Po30(SU) Eth LACP Eth1/1(P) N5kML9_1.1_3_1# sh run int po30 interface port-channel30 description To_C6500 switchport mode trunk switchport trunk allowed vlan 15,22,33,54,101,103,110,310,350-354,790-791,813-814,820-822,825-828,1999 spanning-tree bpdufilter enable vpc 30 N5kML9_1.1_3_1# sh run int et1/1 interface Ethernet1/1 description To_C6500 switchport mode trunk switchport trunk allowed vlan 15,22,33,54,101,103,110,310,350-354,790-791,813-814,820-822,825-828,1999 channel-group 30 mode active
Solved! Go to Solution.